The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 1998
Filed:
Aug. 01, 1996
Applicant:
Inventor:
Bernard Jozef Reits, Hengelo, NL;
Assignee:
Hollandse Signaalapparaten B.V., Hengelo, NL;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q / ; H01Q / ;
U.S. Cl.
CPC ...
343910 ; 343909 ;
Abstract
The invention relates to a microwave antenna for the generation of a beam with adjustable parameters. Use is made of a reflective Fresnel zone plate that is written into a thin layer of silicon by means of a laser plus deflection means. A reflector is positioned behind the Fresnel zone plate for reflecting microwave radiation that is not reflected by the Fresnel zone plate.